Condensed Consolidated Statements of Income and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Statement [Abstract]
Net sales	$ 5,015,023	$ 4,722,922	$ 14,686,116	$ 14,131,281
Cost of goods sold	3,390,597	3,238,687	9,954,941	9,689,653
Gross profit	1,624,426	1,484,235	4,731,175	4,441,628
Operating expenses:
Selling, administrative and other expenses	1,269,893	1,119,266	3,684,026	3,401,254
Depreciation and amortization	68,922	61,082	197,053	177,896
Provision for doubtful accounts	1,693	4,939	11,624	11,306
Total operating expenses	1,340,508	1,185,287	3,892,703	3,590,456
Non-operating (income) expenses:
Interest expense	26,485	25,084	73,664	75,669
Other	(47,100)	(17,871)	(53,366)	(45,822)
Total non-operating (income) expenses	(20,615)	7,213	20,298	29,847
Income before income taxes	304,533	291,735	818,174	821,325
Income taxes	77,046	71,508	206,007	197,550
Net income	$ 227,487	$ 220,227	$ 612,167	$ 623,775
Basic net income per common share (usd per share)	$ 1.56	$ 1.50	$ 4.20	$ 4.25
Diluted net income per common share (usd per share)	1.56	1.49	4.18	4.23
Dividends declared per common share (usd per share)	$ 0.7625	$ 0.7200	$ 2.2875	$ 2.1600
Weighted average common shares outstanding (in shares)	145,572	146,763	145,875	146,746
Dilutive effect of stock options and non-vested restricted stock awards (in shares)	617	690	654	574
Weighted average common shares outstanding - assuming dilution (in shares)	146,189	147,453	146,529	147,320
Other comprehensive loss, net of income taxes:
Foreign currency translation adjustments	$ (126,350)	$ (26,590)	$ (88,369)	$ (147,703)
Cash flow and net investment hedge adjustments, net of income taxes in 2019 — $16,988 and $15,057; 2018 — $278 and $6,213 respectively	45,925	752	40,704	16,797
Pension and postretirement benefit adjustments, net of income taxes in 2019 — $2,592 and $6,166; 2018 — $2,560 and $7,850 respectively	7,024	6,912	16,689	21,221
Other comprehensive loss, net of income taxes	(73,401)	(18,926)	(30,976)	(109,685)
Comprehensive income	$ 154,086	$ 201,301	$ 581,191	$ 514,090